Priming-cup.



0. A. SMITH.

PRINHNG CUP.

APPLrcATmN F|LED APR.22.1914.

Patented Sept. 14, l1915 aww/wie@ www@ wil/neogeo /m QSCAR A. SMITH, FCLEVELAND, OHIO.

Specification of Letters Patent.

Application led April 22, 1914. Serial No. 833,590.

To all whom it may concern Be it known that I, OSCAR A. SMITH, a citizenof the United States, residing at Cleveland, in the county of Cuyahogaand State of Ohio, have invented certain new and useful Improvements inPriming-Cups, of which the following is a specification.

This invention relates to priming cups for gas engines, the object ofthe invention being to provide an improved cup which can be quickly,lreadily and inexpensively', made in two parts, each of which can bepractically made complete on an automatic screw machine and which partsare so constructed and assembled that when the cup is closed there is noopening thereinto from the engine, so that it is not possible for carbonand soot to enter the cup.

In the ordinary priming cups .there is usually a hole or opening belowthe valve so that carbon and soot frequently close up this hole whilethe carbon also affects the valve, causing it to set and render it hardto turn, and under these conditions grooves become cut by the carbon inthe valve and there is sometimes a loss of power through the primingcup.

The gist of the present improvement therefore is the provision of animproved priming cup'readily and inexpensively made of two parts, and inwhich there is no possibility of soot and carbon entering the cup .fromthe enginewhen the valve is closed.

YIn the drawings accompanying and forming part of this specification,Figure l is a side view of this improved cup with the valve closed; Fig.2 is a vertical sectional view thereof with the valve open; Fig. 3 is aview of the valve member; and Fig. 4 is a perspective view of the cupmember.

Similar' characters of reference indicate corresponding parts throughoutthe several figures of the drawings.

'The )resent im )roved rimin r cu while particularly constructed for usewith gas engines, is adapted for various purposes and comprises aone-piece cup or body member 2 and a one-piece valve member The cup orbody member 2 is preferably made from a single piece of brass exteriorlythreaded at one end as at 4; .for insertion into the engine andangularly formed at the opposite end as at 5 for the reception of awrench. This body member is drilled to form 'an axial passage and isalso threaded interiorly at the end as at 6, and its vopposite end iscounterbored as at 7 to provide a chamber or cup for the reception vofthe gasolene. Communicating with this chamber are two .small breachedholes or passages 8 for the passage of the gasolene from the chamber onthe opening of the valve.

The valve comprises a-headed and tapered end 9 adapted to tightly litagainst the tapered seat 10 of the body member. IThe stem 1l of thisvalve is threaded at its lower end for engagement with the interiorthreads of the body member, and this stem extends through the body andwhen assembled is provided with a bent end l2 to form a handle, and thisbent handle also prevents lthe valve from dropping away from the bodywhen the parts are assembled. In the use of the device gasolene ispo-ured into the counterbored opening forming the cup, and when thevalve. is open it runs through the broached passages into the cylinderto which the body member is attached. Thus it will be seen that when thevalve is closed the opening into the body member at the bottom end ofthe device is entirely closed by the tapered valve member, so thatthere. is no opportunity for the passage of carbon o r soot to the cupor to interfereJ with the effective closing of the valve or in any wayinterfere with the operation of the device, and consequently there is nochance for the valve passage in the body to become clogged, while at thesame time the device can be inexpensively and cheaply made of two partseach upon an automatic multiplespindle screw machine. Moreover, there isno liability of one part dropping from the other into the engine, whilethe priming of the engine by means of this cup is a direct priming. thatis to'say, the liquid runs directly down from thevcup into the engine.'

l claim as my invention: l. A priming cup for gas engines comprisinga-two-part device, each part of an integral structure, one partconsisting of a body member having an axial passage therethrough andterminating at one end in a tapered Yal've seat and at its opposite endin a cylindrical fluid receiving chamber, said passage having its wallprovided with threads and one or more laterally extending recesses. andsaid body -having at one end external threads and at its opposite end awrench receiving portion, and the other in-v tegral part consisting of astem extending through said passage and having a tapered Patenten sept.14, 1915. i

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valve for engaging said seat and provided.y

with threads coperating with said first threads, the opening ofthe valvebeing obtained by lowering said valve from the seat in the direction offlow of fluid from said chamber when in normal position and the closingthereof byv drawing the valve in the opposite direction.

2. A priming cup for gas engines comprising a body member having anaxial passage therethrough and provided at one end with, internal andexternal threads and at its opposite end with a fluid-receiving chamberhaving thereon a wrench-receivingportion, said body member terminatingat its threaded end in a tapered valve seat, and a stem extendingthrough said passage and provided with threads adapted to coperate withthe internal threads of said body and also provided with a valve forengaging said seat, the organization being such that the valve is openedby moving said valve from its seat in the direction of flow of fluid.

from said fluid-receiving chamber when in normal position.

8. A priming cup for gas engines comprising a body member having anaxial passage therethrough and provided with internal and externalthreads at one end thereof and a fluid-receiving chamber having avwrench-receiving portion formed on its .outer surface at `the oppositeend thereof,

said body member terminating at its threaded endin a tapered valve seat,and a stem extending through said passage and prof r vided with threadscoperating with. the internal threads of said body and terminating i ina valve for engaging said valve seat, the

organization being such that the valve is opened by moving said valvefrom its seat in the, direction of flow offluid from said Huid-receivingchamber when in normal po-.

' sition.'

i 4:. A priming cup for gas engines comprising a two-part device, onepart consisting of a .body member having an axial passage therethroughand. terminating at one end in a valve seat, and at its opposite end ina fluid receiving chamber, such body having at onel end external threadsand at its opposite end a wrench receiving portion, and the other partconsisting of a stem extending through said passage and having a valvefor engaging said seat, the opening of the valve being obtained bylowering said valve from the seat in the direction of iow of fluid fromsaid chamber when in normal position and the closing thereof by drawingthe valve in the opposite direction.

5. A priming cup for gas engines coin- .prising a two-part device, onepart consisting of a body member having an axial passage therethroughaiid terminating at'one provided 4with threads coperating with saidfirst threads, the opening of the valve being obtained by lowering-saidvalve from the seat in the direction of flow of fluid from said chamberwhen in normal position and the closing thereof by drawing the valve inthe opposite direction.

6. A priming cup for gas engines comprising a two-part device, one partconsisting of ajbody vmember having an axial passage therethrough andterminating at one o end in a tapered valveseat and at its opposite endin a fluid receiving chamber of greater diameter than said aXialpassage, said passage having its wall provided with threads, and saidbody having at one end external threads and at its opposite enda wrenchreceiving portion, and the other part consisting of a stem extendingthrough said passage and having a tapered valve for engaging said seatand provided with threads coperating with. said first threads, theopening 'of the valve being obtained by lowering said valve from theseat in the direction of flow of fluid from said chamber when innormal-'position and the closing thereof by drawing the valve in theopposite direction. y. priming cup for gas engines comprising a two-partdevice, one part consisting of 'a body member having an axial pasidosage therethrough and terminating at one end in a tapered valve seat andat its opposite end in a fluid receiving chamber of greater diameterthan said axial passage,

said passage having its wall provided with threads, and said body havingat one end external threads vand at its opposite end a wrench receivingportion, and the other part consisting of a stem extending through said'passage and having a tapered valve for engaging said seat and providedwith threads cooperating with s aid first threads, said stem having abert handle-forming portion, the openingr of the valve beingobtained bylowering said valve from the seat in the directionfof iow of fluidfrom'said chamber when in normal position and the closing,

thereof bydrawing the valve in the opposite direction. n

8. A priming cup for gas engines comprising a two-part device'consisting of a body having an enlarged wrench receiving vvportionprovided with a fluid reoeivin chamber, and a smaller externally threadeportion having an axial passagek communi\ eating4 with said chamberatone endend' terminating at its oppositeend lin a tapered' valve seat, astein extending 'through passage and projecting beyond said valve seatand having a tapered valve coperating with said seat whereby the.opening of the valve is obtained by lowering said valve from the seatin the direction of flow of fluid from saidchamber when in normalposition and the closing thereof by drawing the valve in the oppositedirection, said stem having threads coperatingwith threads formed' onthe wall of said axial passage. y

9. A priming cup for gas engines compris. ing a two-part deviceconsisting of a body having-.an enlarged wrench. receiving portionprovided with a Huid receiving chamber, and a smaller externallythreaded portion having an axial 'passage comunicatng with said chamberat one end and termiv nating at its opposite end in a tapered valveseat, a stem extending through said passage and projecting beyond saidvalve seat and having a tapered valve 'coperating with said seat wherebythe opening of the valve is obtained by lowering said valve from theSeat in the direction of iiow of fluid lfrom said chamber when in normalposition and the closing thereof by drawing the valve in the oppositedirection, said stem having threads coperatingwith threads formed on thewall of said axial passage, and said stem having a bent handle-formingportion projecting beyond the chamber of said body member.

10. A priming cup for gas engines comprising a two-part deviceconsisting of a body having an enlarged wrench receiving portionprovided with a iiuid receiving chamber, and a smaller externallythreaded portion having an axial passageY communicating with saidchamber at one end and terminating at its opposite end in a taperedvalve seat, a stem extendingv through said passage and projecting beyondsaid valve seat and having a tapered valve cooperating with said seatwhereby the opening of the valve is obtained by lowering said valve fromtheseat in the direction of flow of "fluid from said chamber when innormal po-

